# Stair Calculator Plus vs DIVE DCIEM

The clearest difference is price: DIVE DCIEM at Free against Stair Calculator Plus's $2.99. DIVE DCIEM also leads on review sentiment (43% vs 0%) and update cadence (every 3 weeks vs every 43 months). Stair Calculator Plus's advantage is rating (3.0 vs 1.0) and in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

DIVE DCIEM is free to download; Stair Calculator Plus costs $2.99 up front. DIVE DCIEM sells 3 in-app purchases, starting at $1.99 per month. Stair Calculator Plus asks for nothing beyond the download.

Stair Calculator Plus holds the better App Store score, 3.0 against 1.0. That said, the two scores are not equally well evidenced: Stair Calculator Plus has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of Stair Calculator Plus's written reviews are positive against 43% of DIVE DCIEM's, so the app with the better star average is not the one people write more warmly about.

Stair Calculator Plus ships an update every 43 months, DIVE DCIEM every 3 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stair Calculator Plus | DIVE DCIEM |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.0 (18 ratings)](https://appshunter.io/ios/app/stair-calculator-plus/id1442478865/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/dive-dciem/id1477307342/reviews) |
| Number of ratings | **18** | 1 |
| Positive reviews | 0.0% of reviews | **42.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 109 MB |
| Requires iOS | 12 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Diamonds by Sade PTY LTD](https://appshunter.io/developer/1477307341) |

## What reviewers say

### Stair Calculator Plus

[App page](https://appshunter.io/ios/app/stair-calculator-plus/id1442478865)

This utility app assists with stair design by instantly calculating crucial measurements like rise, run, and rail angle. It supports high precision with up to 16 decimal places and offers flexibility with various input units. Results can be easily copied to other applications for seamless workflow integration.

**Highlights:** Instant stair rise and run calculation, Calculate stair rail angle, Determine stringer length, Support for 16 decimal places, Multiple input units, Copy results to other apps

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### DIVE DCIEM

[App page](https://appshunter.io/ios/app/dive-dciem/id1477307342)

This utility app provides commercial divers with essential tools for dive planning and logging. It includes DCIEM tables, a dive calculator, and real-time deco stop information. Designed for both onshore and offshore operations, it aims to simplify dive management.

**Highlights:** DCIEM tables, Dive calculator, Live dive information, Deco stops and NDL, Dive log sharing, Onshore/offshore support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Premium | $1.99 | per month |
| 6 Months Premium | $5.99 | per 6 months |
| 12 Months Premium | $9.99 | per year |


## Frequently asked questions

### Is Stair Calculator Plus free?

Stair Calculator Plus costs $2.99, with no in-app purchases.

### Is DIVE DCIEM free?

DIVE DCIEM is free to download, with in-app purchases available.

### Which has better reviews, Stair Calculator Plus or DIVE DCIEM?

Stair Calculator Plus is rated higher. Stair Calculator Plus averages 3.0 out of 5 from 18 ratings, while DIVE DCIEM averages 1.0 from 1 ratings.

### Do Stair Calculator Plus or DIVE DCIEM have ads?

Neither Stair Calculator Plus nor DIVE DCIEM shows ads.

### Which is updated more often, Stair Calculator Plus or DIVE DCIEM?

Stair Calculator Plus ships an update every 43 months, and DIVE DCIEM every 3 weeks. Most recently, Stair Calculator Plus was updated on October 26, 2026 and DIVE DCIEM on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*